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COMMITMENTS AND CONTINGENCIES - Aircraft Commitments by Fleet Type (Details) (Details) - Future aircraft purchase commitments | Mar. 31, 2025 aircraft
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Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 285
A220-300 |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 69
A321-200neo |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 82
A330-900neo |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 6
A350-900 |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 8
A350-1000 |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 20
B-737-10 |
Future Purchase Commitments |
Aircraft purchase commitments, minimum quantity required | 100

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